Clamp



Dec. 7, 1948. A. B. MlcHAu-:NKO

CLAMP Filed July 12, 1947 ,l/maw i MMA/nume@ IN V EN TOR.

Patented Dec. 7, 1948 UNITED i .STATES BATENT OFFICE Clam I b Andrew Michalenko, LosAngeles, Calif. f Application Jnly 12, 1947, SerialNo. '160,624`

the ends "of the clamp together, and the `i other` to fasten theclamp to a support. In another known clampythe ends` of the `clamp .are held together by a hook `and notch arrangement;` with only one bolt aperture for a bolt extending crosswise of the axis of the clamp. Both `of these known bolts have the :disadvantage that they are not adapted toisupport wires or tubing extending over the edge of a partitionor support and they are not adaptedto serve asia grommet toprotect the wires orltubing from the edge of anaperture throughlthesupport. 1 According to the invention, l the fclamp-is provided witha` tonguewhich is offset from one edge of the 'clamp wherebythe` edge Which `pro-` jectsbeyond the tongue can rest on and besupported by an edgefof a partition, or it can project through `a hole in a `partition to serve as a grommet.

According to a further feature of the invention, one form of clamp is" provided wherein a single bolt holds the ends of theclarnp together and serves to fasten the clampyto wavsuitable support, the single bolt servingfzfthese `functions for either one of two sets ,of bolt holes in the clamp, one of these sets being parallel to the axis of the clamp and the othenhole beingcross` wise thereof.

In another form of the invention, a single `bolt may be used` in either one of two bolt holes which are at right angles to each other, the ends of the clamp being secured together not by that bolt, but by a hook and notch arrange--` ment.

The clamp is preferably lined with rubber as well known.

For further details of theinvention, reference may be made to the drawings wherein Fig. 1 is a perspective view of a preferred `formV of the invention, showing the clamp closed.`

Fig. 2 is a perspective view `of the clamp of Fig. 1, with theclamp open.

2 Claims. (o1. 218574) Fig.` 3 is avsectionalfview on line 3-3 of Fig. 1, looking inthe directionof the arrows. I i I Fig. 4` is aside view in elevation showing the clamp of` Fig. 1 mounted on the edge of a support shown in section. i I

JFig. 5` is a side view inelevation of ,the clamp ofFig. 1 `used as a grommet for a support shown infsection. i I

"Fig: 6 is atransverse sectionalview of a modification. l

l Fig. "1 isla sectional view on linel 1-1 of Fig. 6, looking in` the direction of the arrows.

Referring in detail tothe f drawings, the clamp I` comprises a strip `of sheet `metal having a hollow. body portion `2 whichiisof cylindrical or other `shape to forman enclosure. `By pressing against the springaction of the body 2, the ends Scand 4 of the `strip canbe brought flat together or faceto face. I `The ends 3, 4 are provided with a bolt `hole Shaving an axiswhioh extends crosswise ofithe=axis of `the body portion 2. The terminalportionof; end 4 is `bent to form two cylindricalIearsG and 1 which serve as holes for a, bolt extendingsubstantially `parallel to the axis of thebodyi2.` The ears 6 and 1 are` spaced apart by reason oLcutting; or` stamping out a portion between them, while the intermediate portion ofthe end 4 extends in a tongue 8 substantially ini the` plane of `theend 4. t

The end 3 is -cut away at the `front corners' as indicated at` Siandl so that the clamp ends 3nand1f4 will nt together withoutV striking the` ears 6,1. Thefintermediate` portion of the end 3 has a, tongue II'` movable into or out ofthe spacegbetween` ears 6 and 1, as the clamp I is openedandvclosed.` The outer end of `tongue IIwis; cylindrical asnindicated at I2 to provide a hook, and when `.theclamp I is closed as shown intongue II, the hooklIZ` conforms to and extends `side lbyiside` with `the cylindrical shape of ears Band 1. As the body 2 is made of metal, such` asalurninum,` having some spring tendency, the tendency of the clamp I is to move to open position as shown in Fig. 2. The clamp l is held closed and also, is secured to a suitable support, by a bolt passing through aperture 5, or by a boltpassing through ears 6 and 1 and over the tongue I I. In the latter event, the hook I2 faces body 2 and prevents the end 3 from shifting inwardly with respect to the end 4, while the end 3 `cannot shift outwardly for the following reason. `The axis 43, see Fig. 3, of the ears 6 and 1 is parallel to the axis of the body 2 and isoffset towards the end 3 by an amount equal to the radius of the aligned bolt holes 44, 45 plus 3 the metal thickness of end 3, whereby the ears 6, 1 at their inner ends 46, 41 cross the shoulders 48, 49 respectively resulting from the out outs 9, I0. The ear portions 46, 41 thus form abutments for outward movementl of shoulders 48, 49 respectively. The axis of hook I2 is coaxial with ear axis 43, with ends 3 and 4 also tongues 8 and II in face to face relation when the clamp is held closed by a bolt through holes 44, 45 and overlying tongue I'I and the inner, portion of hook I2.J flh=hook"'l2 thusformsa segment,

and the rines 114, isfm another `segmenttfv the segmental hole for the bolt.

As shown in Figs. l and 2, the body 2 may be encased in a rubber sleeve I3 which covers the interior of the clamp as Well as extending over its edges as indicated at I4 and I5. g

In order that the clamp I may be employed 1to ends 3 and 4 are laterally offset from th'e body? u (or body 2 is axially offset from ends 3, 4), whereby tljTl'ef-tedge-ofthe clamp'l, as 'shown in- Fig'fl, overhangs theleft edge" lpfithe ends?. and `4 to providefan axial'overhan'g I9. As'sh'ownin Fi'g. 4, the clampfl is held ,together by a bolt 20 which passes through the ears E and-1 and over the tongue II,fthrough'an'aperture 2I'in thesupport, withthe -edgje'I8of the'ends' 3 and 4 against't-h'e face of the support I1 and with the overhanglg extending overard beyond the support, whereby wires or tubing not shown held in the clamp'are giardedagainst the 'edgeof the support I1.` .'-The hole 2i in the support should; of c'ourse,l be located a fpro'per distance :from'thetop of the support'so that Vthe overhang I9 will? extend'over an'dguard the 'edge I 6 of supportfand inrthisl case', the edge Itof the supportHfalso servesas a support'for theclarnp l as the' overhang I'9re'sts on lit Aandis supported by it.""Boltf20'has"atihea'd v25 which bars against the ear 1, 'and a-threaded shank' 2'6 whichextends' through 'tlieholeI' and provided with" a 'n'iit 2'1.- 'In a' similar manner; .the clamp] i may serve as a "grominet as f'snownfinxligf' 5, wherein the support`22^is provided 'Witl'ia hole 2'3 uirbugn whicntne overn'angieextendstd guard nection with Fig. 4. The overhari'glllft'sin hole i has a metal strip fhaving'fa body portion 3| bent substantiallyfiri'the shapeof 'acylinderand provided^witha rubber 'covering 32 `as! described above. 1 One end 33'of the "strip 3U has a hook`34 andthe btlfier 'end' hasan'intermediat portion35 having a' seriesof apertures'SB "to b'eengaged by the' hook 34 to lockfthe 'clamp'flclo'sed 'and' of an Cil adjustable size, this hook feature being well known. Beyond the portion 35, the clamp has a reverse bend 58 which extends outwardly as a at portion 31 having a bolt hole 38 for a bolt extending crossWise of the axis of the clamp. The portion 31 is terminated in a cylindrical portion 39 to :rovide a hole 40 for a bolt extending parallel to the vaxis of the clamp. In this case also, the terminal portion 31, 39 is offset axially with respect toy the lengthoi. the body l3l! whereby the left end al eveniangs ,or l'projects beyond the ievft edge 42 f the enrripeid 31, 39.

V:The clamp of Figs. 6 and 1 may be mounted in position as shown in Figs. 4 and 5, with a bolt extending through the hole 40 and with the edge 42 engaging the face of the support, whereby the partition as Fig.' fl, or through and beyond the hole in a partition to serve as a grommet as in Figi If the wire or tubing are to be supported parallel totheface of the support, thebolt'is' employed in the hole 5 of the clampof Fig. 1, orin'the' hole 38 of the'clamp of FgfG." 'i l Various modifications may be made in the inventionwithout departing from the'spirit of the following claims. For example; in both' formsv of clamps:tl'ieloverhangv maybe omitted, whereby 'theleft edge of the `body of the clamp in Fig; 4' or Fig. {Twill-be inline with 'theleft'e'dg'e of the ends oithe clamp,l as sliown'attheright edg'eftl'lereof However, the overhang is preferred, as it does not interfere vwtlrusing*the Yclar'npV inthe ordinary way 'with theboltthrough theholefor 38. "'Also', the body may have an overhangiwherein the body itself isinot extended, but'tlie rubber sleeve is' ex'- ten'dedto provide the overhangffif l LA clamp having a; hollow body adapted to receive wires, tubingor 'the'like, said body having avboltr'eceivingerid, said body having'an' overhangextendingaxially beyond one edge of'said end;:and means for-securing `said edgeV of said end a'gainstfalsupport with said overhang overlying and supported bythe edge'fof said's'upport 2. `A,'clellp having A-afihollovv body lhaving an axis, said'folamp having endportionsfitting face to face fand haying a'bolt'lrioley extending crossWise oisaid axis, said end portions'having bolt receiv-A ingsmernbers iitting side by side whensaid' clamp isclosed andprovidinga bolt hole parallel to 'said' Number Name Date 934,804 Folger Sept.' 2121909 2,360,713 Tinnerman Feb.l, 1944 vof record lin the 

